diff --git a/Tools/scripts/git-diff-ports.sh b/Tools/scripts/git-diff-ports.sh
index 73ae0a8031a3..e519ca70b216 100755
--- a/Tools/scripts/git-diff-ports.sh
+++ b/Tools/scripts/git-diff-ports.sh
@@ -1,35 +1,36 @@
 #!/bin/sh
 #
 # MAINTAINER: yuri@FreeBSD.org
 
 set -e
 set -o pipefail
 
 export LC_ALL=C
 
 ##
 ## git-diff-ports.sh: returns the list of ports with uncommitted changes in the repository
 ##
 
 # check that packaged dependencies are installed
 
 for dep in git; do
 	if ! which -s $dep; then
 		echo "error: the '$dep' dependency is missing"
 		if [ $dep == "git" ]; then
 			echo "... please install the 'git' package"
 		fi
 		exit 1
 	fi
 done
 
 
 # MAIN
 
 git diff HEAD "$@" |
 	grep "^diff " |
 	grep -v Mk/ |
 	grep -v Tools/ |
 	sed -E 's|diff --git a/||; s| .*||; s|([^/]+/[^/]+).*|\1|' |
+	grep -v '/Makefile$' |
 	sort |
 	uniq